Rotation connection component and foldable mobile terminal

Abstract

A rotation connection component includes: a first base, a second base, and a connection clamp. The second base is rotationally connected to the first base through the connection clamp, the connection clamp is slidably connected to the first base, the rotation connection component has an unfolded state and a folded state. In the folded state, the connection clamp slides into the first base. In the unfolded state, at least a portion of the connection clamp slides from the first base, and the second base rotates by a preset angle relative to the first base.

What is claimed is: 
     
       1. A rotation connection component, comprising: a first base, a second base, and a connection clamp, wherein the second base is rotationally connected to the first base through the connection clamp, the connection clamp is slidably connected to the first base, the rotation connection component has an unfolded state and a folded state, in the folded state, the connection clamp slides into the first base; in the unfolded state, at least a portion of the connection clamp slides from the first base, and the second base rotates by a preset angle relative to the first base; wherein
 the first base has a guide rail, and the connection clamp is slidably connected to the guide rail; 
 the guide rail is a first curved sliding hole provided on the first base; 
 the connection clamp is disposed inside the first curved sliding hole and slides along the first curved sliding hole; 
 an extending direction of the first curved sliding hole is the same as a rotation direction of the first base or the second base; and 
 the connection clamp comprises two connection sub-clamps, the two connection sub-clamps are a first connection sub-clamp and a second connection sub-clamp, the first connection sub-clamp and the second connection sub-clamp are sequentially connected between the first base and the second base, the first connection sub-clamp has a second curved sliding hole, and the second connection sub-clamp is disposed inside the second curved sliding hole and matched with the second curved sliding hole by slip-fit in a rotation direction of the first base or the second base. 
 
     
     
       2. The rotation connection component according to  claim 1 , wherein a first locking portion is disposed inside the first curved sliding hole, a second locking portion is disposed on the connection clamp, and the second locking portion is matched with the first locking portion by position-limiting-fit in the rotation direction. 
     
     
       3. The rotation connection component according to  claim 2 , wherein the first locking portion is disposed at a tail end of the first curved sliding hole, and the second locking portion is disposed at an end of the connection clamp away from the second base. 
     
     
       4. The rotation connection component according to  claim 1 , wherein a third locking portion is disposed at a tail end of the second curved sliding hole, a fourth locking portion is disposed at an end of the second connection sub-clamp away from the second base, and the third locking portion is matched with the fourth locking portion by position-limiting-fit in the rotation direction. 
     
     
       5. A foldable mobile terminal, comprising: a first folding portion, a second folding portion, and a rotation connection component, wherein the rotation connection component comprises a first base, a second base, and a connection clamp, the second base is rotationally connected to the first base through the connection clamp, the connection clamp is slidably connected to the first base, the rotation connection component has an unfolded state and a folded state; in the folded state, the connection clamp slides into the first base; in the unfolded state, at least a portion of the connection clamp slides from the first base, the second base rotates by a preset angle relative to the first base; the first folding portion is connected to the first base, and the second folding portion is connected to the second base; wherein
 the first base has a guide rail, and the connection clamp is slidably connected to the guide rail; 
 the guide rail is a first curved sliding hole provided on the first base; 
 the connection clamp is disposed inside the first curved sliding hole and slides along the first curved sliding hole; 
 an extending direction of the first curved sliding hole is the same as a rotation direction of the first base or the second base; and 
 the connection clamp comprises two connection sub-clamps, the two connection sub-clamps are a first connection sub-clamp and a second connection sub-clamp, the first connection sub-clamp and the second connection sub-clamp are sequentially connected between the first base and the second base, the first connection sub-clamp has a second curved sliding hole, and the second connection sub-clamp is disposed inside the second curved sliding hole and matched with the second curved sliding hole by slip-fit in a rotation direction of the first base or the second base. 
 
     
     
       6. The foldable mobile terminal according to  claim 5 , wherein the first folding portion comprises a first housing connected to the first base and a first display screen disposed on the first housing, the second folding portion comprises a second housing connected to the second base and a second display screen disposed on the second housing, when the rotation connection component is in the unfolded state, the first display screen and the second display screen are coplanar and form a display interface of the foldable mobile terminal, and when the rotation connection component is in the folded state, the first display screen and the second display screen are stacked. 
     
     
       7. The foldable mobile terminal according to  claim 5 , wherein the foldable mobile terminal is a mobile phone, a tablet computer, an e-book reader, or a game console. 
     
     
       8. The foldable mobile terminal according to  claim 5 , wherein a first locking portion is disposed inside the first curved sliding hole, a second locking portion is disposed on the connection clamp, and the second locking portion is matched with the first locking portion by position-limiting-fit in the rotation direction. 
     
     
       9. The foldable mobile terminal according to  claim 8 , wherein the first locking portion is disposed at a tail end of the first curved sliding hole, and the second locking portion is disposed at an end of the connection clamp away from the second base. 
     
     
       10. The foldable mobile terminal according to  claim 5 , wherein a third locking portion is disposed at a tail end of the second curved sliding hole, a fourth locking portion is disposed at an end of the second connection sub-clamp away from the second base, and the third locking portion is matched with the fourth locking portion by position-limiting-fit in the rotation direction.